Universally adjustable double drilling and forming machine



W. A. POSS Sept. 25, 1956 UNIVERSALLY ADJUSTABLE DOUBLE DRILLING AND FORMING MACHINE Filed May 12. 1955 2 Sheets-Sheet 1 i 9 LEW? @NW mp." h m M a .d m V Wm; wmug Sept. 25, 1956' w. A. POSS 2,764,192

UNIVERSALLY ADJUSTABLE DOUBLE DRILLING AND FORMING MACHINE Filed May 12, 1955 2 Sheets-Sheet 2 ET? ,ihwanl'ot' wfmd durum 055 WWW fimW/(ww MM W W? United States Patent 011' ice 7 2,764,192 Piitented Sept. 25, 1956 2,764,192 UNIVERSALLY ADJUSTABLE nous-m nnnniisc AND FORMING MACHINE Wilfred Anthony Poss, Sibley, Iowa Application May 12, 1955, Serial No. 569,533 Claims. 61. 1 14:112

This invention relates to an adjustable drilling a'hd/or forming machine and more partichlarly to a multiple uni-t mechanism. H 7

The-re are many cases in Wood and metal processing where two or more spaced apart drilled holes must match a like number of holes in a second piece or part, This is especially true in constructing furniture or like 'where dowel pins are used to secure two members together. Obviously, the complementary holes must match and also the matching must be 'accuh'ate as to the proper fitting of the parts together. Dowel pin centering devices have been used, but the procedure is slow and tedious, and even then great care must be taken by the Workman.

Therefore, one of the principal objects of my invention is to provide a double bit drilling machine that permits quick adjustment of the distance between the two A still further object of this invention is to provide a double parallel bit mechanism that may be laterally rotated to place the arrangement of the two bits at various angles relative to the vertical and horizontal planes of the product being processed.

A still further object of my invention is to provide a multiple drilling machine that is universally adjustable in all directions.

A still further object of this invention is to provide an accurate multiple hole forming machine that is easily operated even by an unskilled workman.

Still further objects of my invention are to provide a multiple adjustable drilling machine that is economical in manufacture and durable in use.

These and other objects will be apparent to those skilled in the art.

My invention consists in the construction, arrangements, and combination, of the various parts of the device, whereby the objects contemplated are attained as hereinafter more fully set forth, specifically pointed out in my claims, and illustrated in the accompanying drawings, in which:

Fig. 1 is a back perspective view of my machine,

Fig. 2 is an enlarged side view of the head portion of my device,

Fig. 3 is an enlarged .front view of my machine taken on the line 33 of Fig. 2,

Fig. 4 is an enlarged vertical sectional view of the m..- chine taken on line 4-4 of Fig. 3 and more fully illustrates its construction, and

Fig. 5 is an enlarged front view of the device taken from line 5-5 of Fig. 4.

While I show my device as a hole drilling machine, the bits may be replaced by other forming tools such as routers or like. Also the number of bits or like may be increased, but for purposes of illustration I show only two.

In these drawings I have used the numeral to designa'te any suitable supporting frame and the numeral 11 to designate any suitable adjustable work table or like support for bringing the work to be processed into proper position before the machine bits or like. In these drawings I show a member 12 beihg processed. On the fpr; ward top or the stand or like 10, I' secure a bracket 13, A similarlirftcket 1'4 is spacedjhack of the'bnack't 13" and secured to the stand 10, as islibwn {in Fig. 1. The imm'erjal's 15 and 16 designate two horiiontal parallel rod shafts, spaced apart, eX-ten'cliiig longitudinally of the stand, and connected to' the two bracket supports 13 and 14. The numeral 17 designates a venti'cal frame having its lower end slidably'journaled' aroimdthe two shafts 15 and 16, as shown in Fig. 3. The numeral 18 designates a crank arm rota-tably secured to the bracket 14, as shown in Fig. 1. The numeral 19 des'ignate's abar rigidly secured to the crank arm. The humera-I ZO designates a liiik bar having. one end pivoted to the outer end of'fth bar 19 and its other end pivoted to the frame 17. Thus when the crank arm" is m'ariwallyactuated the frame 17 will be slid forwardly and backwardly on the shafts 15 and 16. 7 n V Hotatably mounted in the f'rame 17 is a circular plate or chase 21 having teeth 22 around its periphery. The numetal 23 designates a shaft rotatably mounted in the upper portion of the frame 17 and having a manually operated crank handle 25. The numeral 26 designates a Worm: gear on the shaft 23 with its teeth in engagement with the teeth 220 f the plate 21; 7 By this construction, Whenthe handle 25 is rotated the plate will be rotated to the left or right the vertical frame 17. The numeral 27 designates a slot opening arraijged' across the center area of the plate. Near theperiphery of the plate are compass degree numerals readable in the frame, as shown in Fig. 5, to indicate the position of the slot 27 relative to the horizontal and vertical. Slid'ably mounted in the slot 27 are two beanag elements 28 and 29; These two bearings rotatably support the chuck units 30 and 31 respectively. These chucks may detachably hold any tool such as a bit 32.

The numeral 33 designates bearing sleeves on the plate above the slot 27 for rotatably holding the threaded shaft 34. The numeral 35 designates a crank handle on the shaft 34. Each of the bearings 28 and 29 has a lug member 36 threaded onto the shaft 34 as shown in Fig. 3. The shaft has one end portion threaded left hand and its other end portion threaded right hand so that when it is rotated in one direction the chucks will be drawn accord ingly toward each other and when rotated in the opposite direction the chucks wil-l accordingly move away from each other. The chucks are protruding from the face of the plate 21. Extending from each of the bearings 28 and 29, and operatively connected to the respective chucks, is a flexible shaft 40. These flexible shafts are operatively connected to a prime mover means such as the electric motor 41. The purpose of the flexible shafts (besides transferring power to the bits) is three-fold, i. e., the frame 17 may be slid forwardly and backwardly, the chuck units may be moved closer together or further apart, and the plate 21 may be rotated.

In operation the desired distance between the: two holes to be drilled, is had by manipulation of the crank handle 35. The lateral position of any hole, relative to the other, is had by manipulating the crank 25. The depth of the holes is had by operating the crank arm 18. The angle of the holes drilled is obtained by adjusting the piece to be processed on the table.

Thus, my machine is universally adjustable, drills a plurality of holes simultaneously and is capable of duplicating the holes drilled in one piece into another complementary piece.

Some changes may be made in the construction and arrangement of my universally adjustable double drilling and forming machine without departing from the real spirit and purpose of my invention, and it is my intention to cover by my claims, any modified forms of bearing members relative to each other, a chuck element operatively rotatably mounted on each of said bearing members, a flexible shaft operatively connected to each of said chuck elements, and a power means for rotating said flexible shafts.

2. In a device of the class described, a support, a vertical frame slidably mounted on said support, a circular plate rotatably mounted on said vertical frame having a slot opening, two bearing members slidably mounted in said slot opening, a means for moving said bearing members relative to each other, a chuck element operatively rotatably mounted on each of said bearing members, a flexible shaft operatively connected to each of said chuck elements, a power means for rotating said flexible shafts, and a crankmeans for rotating said circular plate.

3. In a device of the class described, a support, a vertical frame slidably mounted on said support, a circular plate rotatably mounted on said vertical frame having a slot opening, two bearing members slidably mounted in said slot opening, a means for moving said bearing members relative to each other, a chuck element operatively rotatably mounted on each of said bearing members, a flexible shaft operatively connected to each of said chuck elements, a power means for rotating said flexible shafts, and a crank gear means for rotating said circular plate.

4. In a device of the class described, a support, a

vertical frame slidably mounted on said support, a circular plate rotatably mounted on said vertical frame having a slot opening, two bearing members slidably mounted in said slot opening, a means for moving said bearing members relative to each other, a chuck element operatively rotatably mounted on each of said bearing members, a flexible shaft operatively connected to each of said chuck elements, a, power means for rotating said flexible shafts, and a crank means for rotating said circular plate; said means for moving said bearing members and said means for rotating said plate employing a worm gear.

5. In a device of the class described, a support, a vertical frame slidably mounted on said support, a circular plate rotatably mounted on said vertical frame having a slot opening, two bearing members slidably mounted in said slot opening, a means for moving said bearing members relative to each other, a chuck element operatively rotatably mounted on each of said bearing members, a flexible shaft operatively connected to each of 'said chuck elements, a power means for rotating said flexible shafts, teeth on the periphery of said circular plates, and a manually rotatable worm gear rotatably mounted on said frame and in engagement with the teeth on the periphery of said plate.

References Cited in the file of this patent UNITED STATES PATENTS Palkowski Oct. 16, 1934 

